Great St. Mary's Datum

Great St. Mary's Datum (HM1AF2)

Location: Cambridge, MN CB2 1SZ Cambs
Country: United Kingdom
Buy United Kingdom flags at!

N 52° 12.317', E 0° 7.076'

  • 0 check ins
  • 0 favorites
This disk
marks the datum point
from which in 1725 William Warren,
Fellow of Trinity Hall, began to measure
the one mile points along the roads from
Cambridge at which were then set up
the first true milestones in Britain
since Roman times.

HM NumberHM1AF2
Marker ConditionNo reports yet
Date Added Thursday, September 25th, 2014 at 11:35am PDT -07:00
Sorry, but we don't have a picture of this historical marker yet. If you have a picture, please share it with us. It's simple to do. 1) Become a member. 2) Adopt this historical marker listing. 3) Upload the picture.
Locationbig map
UTM (WGS84 Datum)31U E 303071 N 5787786
Decimal Degrees52.20528333, 0.11793333
Degrees and Decimal MinutesN 52° 12.317', E 0° 7.076'
Degrees, Minutes and Seconds52° 12' 19.02" N, 0° 7' 4.56" E
Driving DirectionsGoogle Maps
Area Code(s)507
Closest Postal AddressAt or near 221 Senate House Hill, Cambridge MN CB2 1SZ, GB
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

Is this marker missing? Are the coordinates wrong? Do you have additional information that you would like to share with us? If so, check in.

Check Ins  check in   |    all

Have you seen this marker? If so, check in and tell us about it.

Comments 0 comments

Maintenance Issues
  1. Is this marker part of a series?
  2. What historical period does the marker represent?
  3. What historical place does the marker represent?
  4. What type of marker is it?
  5. What class is the marker?
  6. What style is the marker?
  7. Does the marker have a number?
  8. What year was the marker erected?
  9. Who or what organization placed the marker?
  10. This marker needs at least one picture.
  11. Can this marker be seen from the road?
  12. Is the marker in the median?